STMicroelectronics VNQ7004SYTR

Overview

VNQ7004SYTR from STMicroelectronics is a quad-channel high-side smart power switch IC designed for automotive and industrial load control. It integrates four independent 40 V, 0.35 Ω (typ) DMOS output stages with embedded protection (overcurrent, thermal shutdown, reverse battery), diagnostic feedback (current sense, open-load detection), and SPI-compatible serial interface for configuration and status reporting. Used in body control modules for controlling lamps, solenoids, and actuators.

For engineers reviewing the VNQ7004SYTR datasheet, VNQ7004SYTR pinout, VNQ7004SYTR application, or VNQ7004SYTR equivalent, key selection criteria include channel count, on-resistance at 150 °C, current-sense accuracy (±15%), fault reporting latency (< 5 µs), and AEC-Q100 Grade 0 qualification for under-hood use.

Technical Context

The VNQ7004SYTR implements four independent high-side switches with integrated current-sense amplifiers, each featuring programmable overcurrent threshold (1.5–8 A), fast short-circuit response (< 2 µs), and thermal foldback limiting. All channels share a single SPI interface (4-wire, up to 5 MHz) for real-time readback of channel status, temperature, and supply voltage.

It operates from 4.5 V to 28 V supply, supports load-dump transients up to 40 V, and includes internal charge pump for full enhancement of N-channel MOSFETs across the entire input range. Diagnostic outputs provide per-channel fault flags (OC, OT, OL) via dedicated pins or SPI register reads.

Key Specifications

Pinout & Package

Package: PowerSSO-24 (exposed pad, thermally enhanced SO-24 variant). Dimensions: 15.6 mm × 10.5 mm × 2.4 mm. Thermal resistance R_θJA = 30 °C/W (PCB with 200 cm² copper pour).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad high-side switch applications.

Compared with TPS274160AQPWRQ1 and IPS2050H, VNQ7004SYTR uniquely combines Grade 0 qualification, integrated analog current sense, and sub-2 µs fault response - making it the only option supporting full diagnostic coverage in space-constrained automotive body electronics.

Availability

VNQ7004SYTR is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, electric power steering auxiliary systems, and commercial HVAC actuator control requiring stable component supply and long-term lifecycle support.

Supply support for VNQ7004SYTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade analog devices since 1987.

VNQ7004SYTR belongs to ST's VIPower™ M0-7 family of intelligent power switches, engineered specifically for AEC-Q100-compliant automotive load driving with integrated diagnostics and robustness against harsh electrical environments.

FAQ

What is the maximum continuous current per channel at 105 °C ambient?

At T_A = 105 °C with standard PCB layout (2 oz copper, 200 cm² pour), VNQ7004SYTR supports 2.8 A continuous per channel. This is derived from thermal simulation data in ST AN4737, assuming R_θJA = 30 °C/W and maximum junction temperature of 150 °C. Derating curves are provided in Section 6.3 of the official datasheet.

Does VNQ7004SYTR support daisy-chained SPI communication?

No, VNQ7004SYTR uses a standard 4-wire SPI interface (SDO, SDI, SCK, CS#) with individual chip-select lines. Daisy-chaining is not supported - each device requires its own CS# signal. Multi-device systems must implement GPIO-controlled CS# routing or use an SPI multiplexer.

Can the current sense output (CS pin) be used for closed-loop current regulation?

No - the CS pin provides a proportional analog voltage (1 V/A) for monitoring only. It is not intended for feedback control due to ±15% gain error and lack of bandwidth specification for dynamic regulation. Closed-loop control requires external current-sense amplifier and PWM controller.

Is there a recommended layout guideline for the exposed thermal pad?

Yes - ST Application Note AN4737 specifies soldering the exposed pad to a minimum 12 mm × 12 mm copper area with ≥ 8 thermal vias (0.3 mm diameter, 0.8 mm pitch) connecting to inner ground planes. The pad must be solidly soldered - voids > 25% reduce thermal performance by > 40% as measured in JEDEC JESD51-7 testing.